Milwaukee Bucks general manager John Hammond reached out with a phone call to point guard Ramon Sessions immediately when the free agency period opened late Tuesday night (11:01 p.m. Milwaukee time).

It appears the Bucks are seriously interested in retaining Sessions, although Hammond did not reveal if he made a multiyear offer in excess of the $1 million qualifying offer made earlier by the team. Free agents are now eligible to negotiate with National Basketball Association teams but cannot sign contracts until Wednesday.

The 6-foot-3 Sessions is a restricted free agent, and the Bucks will have the right to match offers made by other teams. He appeared in 79 games last season and averaged 12.4 points and 5.7 assists.

The Bucks now have first-round draft pick Brandon Jennings and veteran Luke Ridnour at the point guard spot, in addition to Sessions.

According to the New York Post, Sessions is high on the list of guards coveted by the New York Knicks. Also on the Knicks' wish list are Mike Bibby, Andre Miller and veteran Jason Kidd, who met with Knicks officials Wednesday.

But Mavericks owner Mark Cuban also met with Kidd in New York in an effort to retain the veteran point guard, and Dallas reportedly is ready to make a three-year offer.

"Nothing's set in stone with the Bucks," Sessions' agent, Jimmy Wells, told the Post. "You can't predict what Milwaukee will do."

Hammond confirmed that he also made a call to 6-9 forward Ersan Ilyasova, a restricted free agent. Ilyasova played the past two seasons for Regal FC Barcelona in Spain.

It is thought that Ilyasova is genuinely interested in returning to the Bucks, who drafted him in 2005.

Meanwhile, former Bucks forward Charlie Villanueva quickly was signed by the Detroit Pistons. According to the Detroit News and the Associated Press, Villanueva agreed to a five-year, $35 million deal with the Pistons.

Earlier this week, the Bucks declined to make a $4.6 million qualifying offer for Villanueva, allowing the 6-11 forward to become an unrestricted free agent.

Summer league roster released: The Bucks announced a 12-man roster for the NBA Summer League to be held July 9-16 in Las Vegas. Jennings will join second-year players Joe Alexander and Luc Richard Mbah a Moute on the roster, along with Salim Stoudamire and second-round pick Jodie Meeks.

Also on the roster is former Marquette point guard Dominic James.

James' former MU teammates, Wes Matthews and Jerel McNeal, and former Wisconsin star Marcus Landry are on Sacramento's summer league team.